Nx MCP Server

import type { ProjectGraph } from 'nx/src/devkit-exports'; import { detectAtomizedTargets, getProjectGraphPrompt } from './project-graph'; describe('project-graph', () => { describe('getProjectGraphPrompt', () => { it('should truncate dependencies when more than 10 exist', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, test: {}, }, }, }, }, dependencies: { 'test-project': Array.from({ length: 15 }, (_, i) => ({ source: 'test-project', target: `dep-${i}`, type: 'static', })), }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain( 'deps:[dep-0,dep-1,dep-2,dep-3,dep-4,dep-5,dep-6,dep-7,...7 more]', ); }); it('should exclude external nodes from dependencies', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, }, }, }, }, dependencies: { 'test-project': [ { source: 'test-project', target: 'internal-dep', type: 'static', }, { source: 'test-project', target: 'npm:external-package', type: 'static', }, ], }, externalNodes: { 'npm:external-package': { name: 'npm:external-package', type: 'npm', data: { version: '1.0.0', packageName: 'external-package', }, }, }, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain('deps:[internal-dep]'); expect(result).not.toContain('npm:external-package'); }); it('should exclude atomized targets when root target exists', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { 'e2e-ci': {}, 'e2e-ci--src/test1.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, 'e2e-ci--src/test2.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, build: {}, }, }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain('targets:[e2e-ci,build]'); expect(result).not.toContain('e2e-ci--src/test1.cy.ts'); expect(result).not.toContain('e2e-ci--src/test2.cy.ts'); }); it('should exclude atomized targets when multiple root targes exist', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { 'e2e-ci': {}, 'e2e-ci--src/test1.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, 'e2e-ci--src/test2.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, 'test-ci': {}, 'test-ci--src/test1.cy.ts': { metadata: { nonAtomizedTarget: 'test-ci' }, }, 'test-ci--src/test2.cy.ts': { metadata: { nonAtomizedTarget: 'test-ci' }, }, build: {}, }, }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain('targets:[e2e-ci,test-ci,build]'); expect(result).not.toContain('e2e-ci--src/test1.cy.ts'); expect(result).not.toContain('e2e-ci--src/test2.cy.ts'); expect(result).not.toContain('test-ci--src/test1.cy.ts'); expect(result).not.toContain('test-ci--src/test2.cy.ts'); }); it('should exclude specific system targets', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, test: {}, 'nx-release-publish': {}, nxProjectGraph: {}, nxProjectReport: {}, }, }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain('targets:[build,test]'); expect(result).not.toContain('nx-release-publish'); expect(result).not.toContain('nxProjectGraph'); expect(result).not.toContain('nxProjectReport'); }); it('should include metadata when present', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, }, metadata: { technologies: ['react', 'typescript'], owners: { '@team-alpha': { ownedFiles: [{ files: ['*'] }] }, }, }, tags: ['scope:shared', 'type:lib'], }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).toContain('technologies:[react,typescript]'); expect(result).toContain('owners:[@team-alpha]'); expect(result).toContain('tags:[scope:shared,type:lib]'); }); it('should handle empty dependencies gracefully', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, }, }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph); expect(result).not.toContain('deps:[]'); expect(result).toContain('<test-project>'); expect(result).toContain('</>'); }); describe('optimizations', () => { it('should skip technologies when skipTechnologies is true', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, }, metadata: { technologies: ['react', 'typescript'], owners: { '@team-alpha': { ownedFiles: [{ files: ['*'] }] }, }, }, tags: ['scope:shared', 'type:lib'], }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph, { skipTechnologies: true, }); expect(result).not.toContain('technologies:[react,typescript]'); expect(result).toContain('owners:[@team-alpha]'); expect(result).toContain('tags:[scope:shared,type:lib]'); }); it('should skip owners when skipOwners is true', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, }, metadata: { technologies: ['react', 'typescript'], owners: { '@team-alpha': { ownedFiles: [{ files: ['*'] }] }, }, }, tags: ['scope:shared', 'type:lib'], }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph, { skipOwners: true, }); expect(result).toContain('technologies:[react,typescript]'); expect(result).not.toContain('owners:[@team-alpha]'); expect(result).toContain('tags:[scope:shared,type:lib]'); }); it('should truncate targets when truncateTargets is true', () => { const projectGraph: ProjectGraph = { version: '6.0', nodes: { 'test-project': { name: 'test-project', type: 'lib', data: { root: 'libs/test-project', targets: { build: {}, test: {}, lint: {}, compile: {}, verify: {}, check: {}, format: {}, watch: {}, serve: {}, dev: {}, deploy: {}, }, }, }, }, dependencies: { 'test-project': [], }, externalNodes: {}, }; const result = getProjectGraphPrompt(projectGraph, { truncateTargets: true, }); expect(result).toContain('targets:[build,test'); expect(result).not.toContain('deploy'); expect(result).toContain('...3 more'); }); }); }); describe('detectAtomizedTargets', () => { it('should detect atomized targets correctly', () => { const targets = { 'test-ci': {}, 'test-ci--Test1': { metadata: { nonAtomizedTarget: 'test-ci' } }, 'test-ci--Test2': { metadata: { nonAtomizedTarget: 'test-ci' } }, 'test-ci--Test3': { metadata: { nonAtomizedTarget: 'test-ci' } }, }; const result = detectAtomizedTargets(targets); expect(result.rootTargets).toEqual(new Set(['test-ci'])); expect(result.atomizedTargetsMap.get('test-ci')).toEqual([ 'test-ci--Test1', 'test-ci--Test2', 'test-ci--Test3', ]); expect(result.targetsToExclude).toEqual([ 'test-ci--Test1', 'test-ci--Test2', 'test-ci--Test3', ]); }); it('should handle multiple root targets', () => { const targets = { 'test-ci': {}, 'test-ci--Test1': { metadata: { nonAtomizedTarget: 'test-ci' } }, 'test-ci--Test2': { metadata: { nonAtomizedTarget: 'test-ci' } }, 'e2e-ci': {}, 'e2e-ci--Test1': { metadata: { nonAtomizedTarget: 'e2e-ci' } }, 'e2e-ci--Test2': { metadata: { nonAtomizedTarget: 'e2e-ci' } }, }; const result = detectAtomizedTargets(targets); expect(result.rootTargets).toEqual(new Set(['test-ci', 'e2e-ci'])); expect(result.atomizedTargetsMap.get('test-ci')).toEqual([ 'test-ci--Test1', 'test-ci--Test2', ]); expect(result.atomizedTargetsMap.get('e2e-ci')).toEqual([ 'e2e-ci--Test1', 'e2e-ci--Test2', ]); expect(result.targetsToExclude).toEqual([ 'test-ci--Test1', 'test-ci--Test2', 'e2e-ci--Test1', 'e2e-ci--Test2', ]); }); it('should handle empty targets', () => { const result = detectAtomizedTargets({}); expect(result.rootTargets).toEqual(new Set()); expect(result.atomizedTargetsMap.size).toBe(0); expect(result.targetsToExclude).toEqual([]); }); it('should handle targets without atomized metadata', () => { const targets = { build: {}, test: {}, deploy: { metadata: { description: 'Deploy the app' } }, }; const result = detectAtomizedTargets(targets); expect(result.rootTargets).toEqual(new Set()); expect(result.atomizedTargetsMap.size).toBe(0); expect(result.targetsToExclude).toEqual([]); }); it('should not exclude nx:run-script targets in target groups', () => { // This test verifies the fix for the issue where nx:run-script targets // like 'deploy' and 'custom-hello' were incorrectly filtered out const targets = { 'e2e-ci': {}, 'e2e-ci--src/test1.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, 'e2e-ci--src/test2.cy.ts': { metadata: { nonAtomizedTarget: 'e2e-ci' }, }, deploy: { metadata: { description: 'Deploy script from package.json' }, }, 'custom-hello': {}, }; const result = detectAtomizedTargets(targets); expect(result.rootTargets).toEqual(new Set(['e2e-ci'])); expect(result.targetsToExclude).toEqual([ 'e2e-ci--src/test1.cy.ts', 'e2e-ci--src/test2.cy.ts', ]); // deploy and custom-hello should NOT be excluded expect(result.targetsToExclude).not.toContain('deploy'); expect(result.targetsToExclude).not.toContain('custom-hello'); }); }); });